As veteran CB Ike Taylor put it, it's not something to take lightly as Polamalu rarely invites others to work out with him over the summer. Thomas played just 184 defensive snaps as a rookie, with none of them coming in the last seven games when he was demoted to the No. 4 safety. Thomas is a highlight-reel hitter and is being groomed as Polamalu's successor at strong safety. Fri, Jun 27, 2014 10:40:00 AM

Even with SS Troy Polamalu excused from OTAs, 2013 fourth-round pick Shamarko Thomas is working with Pittsburgh's second-team defense.

Mike Mitchell is the new free safety. Thomas appears to be the No. 4 safety, as Will Allen is running in Polamalu's spot. The Steelers' signing of Mitchell and extension of Polamalu speak to the unreadiness of Thomas, whom GM Kevin Colbert traded up to draft last April. Thomas played snaps at slot corner as a rookie, but struggled mightily. He did make seven tackles on special teams. Wed, Jun 4, 2014 10:23:00 PM

Steelers S Shamarko Thomas has been diagnosed with a high-ankle sprain, and is week to week.

Thomas has been ruled out for Week 11. The Steelers' No. 3 safety, Thomas has played 193 snaps on defense this season, grading out negatively in Pro Football Focus' ratings. Tue, Nov 12, 2013 01:41:00 PM